Small, critically efficient, and cost-effective, the GV-4 gets more from every panel.

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Genasun GV-4 10-50W 4A Solar Charge Controller with MPPT

High-Speed MPPT: Always on TargetNot all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. The Genasun GV-4 MPPT solar charge controller adapts to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Mission-Critical ReliabilityGenasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

Plug and Play, with Advanced Error ProtectionsWe all make mistakes. People plug panels in backwards. Wires get touched. Rodents chew through cables and cause short circuits. Stuff happens. But don't worry, we've got you covered. Advanced built-in electronic protections will instantly cut power to a short circuit. The controller will automatically test to see when the short is removed. Once it's clear, normal operation will resume. There's nothing to reset. No fuses to replace. The GV-4 just works.

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